Smart weighing + vision recognition controller using a Seeed XIAO ESP32-S3, Grove Vision AI V2 connected only by 3V3/GND/SDA/SCL, and a simple four-pin ESP32-S3 expansion interface for D2/GPIO3 and D3/GPIO4; no onboard HX711 or load-cell connector.

Autonomous black pepper harvesting robot electrical control system with ESP32 controller, ESP32-CAM vision, A4988 stepper drives, PCA9685 servo control, sensors, E-stop, 12V battery input, and 5V power distribution.